the problem comparing.

Two people running. One is at the 5 mile mark and one is at the 3 mile mark. Obviously, the one at the 5 mile marker is stronger, faster, running better, right? 

That's generally how we live. 

But, the one at the 3 mile marker got off to a slow start. They're actually running faster than the one at the 5 mile marker who got off to a quick start and slowed down. It's still going to take a while to catch up. 

(Like life.) 

The one at the 3 mile marker is running a marathon and the one at the 5 mile marker is running 5 miles. Their goals are completely different. 

(Like life.) 

The one at the 3 mile marker has a prosthetic leg. The one at the 5 mile marker is full healthy. 

(Like life.)

The one at the 5 mile marker has been running for 12 years, the one at the 3 mile marker is in their first month of trying to get healthy. 

(Like life.)

The one at the 5 mile marker is in her 20's. The one at the 3 mile marker is in his 70's. 

(Like life.) 

It always takes a bit of time and conversation and investigation to find out more... so we default to 5 miles must be better than 3.

And that's why we so often measure wrong.